Stockbrugger Barry A, Haennel Robert G
Faculty of Kinesiology and Health Studies, University of Regina, Regina, Saskatchewan, Canada.
J Strength Cond Res. 2003 Nov;17(4):768-74. doi: 10.1519/1533-4287(2003)017<0768:cftpoa>2.0.co;2.
The present study examined the factors contributing to performance of a backward overhead medicine ball throw (B-MBT) across 2 types of athletes. Twenty male volleyball players (jump athletes) and 20 wrestlers (nonjump athletes) were evaluated on 4 measures of power, including B-MBT, chest medicine ball throw (C-MBT), countermovement vertical jump (CMJ), and power index (PI). The athletes also completed 3 measures of strength: a 1-repetition-maximum (1RM) bench press (BP), a 1RM leg press (LP), and combined BP + LP strength. Jump athletes demonstrated greater absolute scores for CMJ, C-MBT, and B-MBT (p < 0.05), whereas nonjump athletes demonstrated greater strength scores for BP and for BP + LP (p < 0.05). When performances were examined on a relative basis, jump athletes achieved superior scores for C-MBT (p < 0.05), whereas nonjump athletes had greater scores for BP, LP, and BP + LP (p < 0.05). For both groups, B-MBT had strong correlations with PI (r = 0.817 [jump] and 0.917 [nonjump]), whereas for C-MBT, only nonjump athletes demonstrated a strong correlation (r = 0.842). When expressed in relative terms, B-MBT was strongly correlated with C-MBT (r = 0.762 [jump] and 0.835 [nonjump]) and CMJ (r = 0.899 [jump] and 0.945 [nonjump]). Only nonjump athletes demonstrated strong correlations with strength for absolute LP (r = 0.801) and BP + LP (r = 0.810) strength. The interaction of upper- and lower-body strength and power in the performance of a B-MBT appears complex, with the contributing factors differing for athletes with divergent skill sets and performance demands.
本研究考察了影响两类运动员进行向后过头实心球投掷（B-MBT）表现的因素。对20名男性排球运动员（跳跃类运动员）和20名摔跤运动员（非跳跃类运动员）进行了4项力量指标的评估，包括B-MBT、胸前实心球投掷（C-MBT）、反向纵跳（CMJ）和力量指数（PI）。运动员们还完成了3项力量测试：1次最大重复量（1RM）卧推（BP）、1RM腿举（LP）以及BP+LP组合力量。跳跃类运动员在CMJ、C-MBT和B-MBT上的绝对得分更高（p<0.05），而非跳跃类运动员在BP以及BP+LP上的力量得分更高（p<0.05）。在相对基础上考察表现时，跳跃类运动员在C-MBT上得分更高（p<0.05），而非跳跃类运动员在BP、LP和BP+LP上得分更高（p<0.05）。对于两组运动员，B-MBT与PI均具有强相关性（跳跃类r=0.817，非跳跃类r=0.917），而对于C-MBT，只有非跳跃类运动员表现出强相关性（r=0.842）。以相对值表示时，B-MBT与C-MBT（跳跃类r=0.762，非跳跃类r=0.835）和CMJ（跳跃类r=0.899，非跳跃类r=0.945）均具有强相关性。只有非跳跃类运动员在绝对LP（r=0.801）和BP+LP（r=0.810）力量方面与力量表现出强相关性。在B-MBT表现中，上下肢力量与功率的相互作用似乎很复杂，对于具有不同技能组合和表现要求的运动员，其影响因素也有所不同。
